SKU: 28206793425
large square outdoor plant pots

large square outdoor plant pots Seeley Cube Planter

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Description

large square outdoor plant pots Seeley Cube PlanterSeeley Cube Fiberglass Planter Steel Reinforced Large Block for Indoor Outdoor Plants and Trees. Entryway, Patio, Privacy, Balcony One Planter Unlimited Possibilities Material: Professional grade fiberglass for extreme durability and a refined aesthetic. Structural Integrity: Internal steel reinforcement on 20", 24", and 30" sizes to ensure perfectly straight walls. Application: Versatile design for privacy screening, spatial division, and entryway

Seeley Cube Fiberglass Planter - Steel-Reinforced Large Block for Indoor /Outdoor Plants and Trees. Entryway, Patio, Privacy, Balcony

One Planter - Unlimited Possibilities

  • Material: Professional-grade fiberglass for extreme durability and a refined aesthetic.

  • Structural Integrity: Internal steel-reinforcement on 20", 24", and 30" sizes to ensure perfectly straight walls.

  • Application: Versatile design for privacy screening, spatial division, and entryway framing.

  • Indoor / Outdoor: Beautifully finished, and optimized for high-traffic commercial interiors, rooftop decks, and expansive outdoor patios.

  • Finish: All Weather UV-resistant architectural matte finish available in Classic White, Grey, and Black.

  • Durability: Engineered to be shatterproof, frost-proof, and fade-resistant for year-round exposure.

  • Weight: High strength-to-weight ratio allows for easy placement while maintaining stability.

  • Drainage: Equipped with pre-drilled drainage holes and removable rubber plugs.

  • Free Fast Shipping - All Orders. 30" Cube - 7/10 Pre-Order

Why Designers Choose the Seeley Cube

The Seeley Cube is the foundational choice for anyone who appreciates clean, minimalist geometry. If you have ever seen a standard plastic planter warp or fade after a single season, you will appreciate the industrial-grade difference here. It is designed to be a permanent, design-forward extension of your architecture.

In professional settings, these are most often used to create a "ceremony of arrival" at entryways or arranged in a rhythmic series to create a "living wall." Because the lines are so crisp and the matte finish so refined, the Seeley Cube defines space—like an open-plan office or a sprawling patio—without adding visual clutter. It anchors the environment, allowing your greenery to take center stage.

The Science: Why Steel-Reinforcement Matters for Large Planters

Most large planters suffer from "bellying"—a phenomenon where the sides bulge outward once filled with heavy, wet soil. This ruins the architectural silhouette. To prevent this, NMN Designs integrates internal steel reinforcement into our 20", 24", and 30" models.

This engineering ensures that even when housing a heavy, mature tree, the walls remain perfectly plumb and vertical. Combined with our commercial-grade fiberglass, you get a vessel that handles extreme thermal expansion (from scorching summers to sub-zero winters) without the cracking or brittleness found in standard resin or plastic pots.

Engineered for Performance: Indoor and Outdoor Versatility

The Seeley Cube transitions effortlessly between environments. For interior use in a foyer or gallery, keep the rubber plugs inserted for a watertight seal. For outdoor installations on a deck or patio, simply remove the plugs to ensure vital drainage and oxygen for the root zone.

Recommended Tree and Plant Pairings by Size:

  • 14" Cube (Medium): Ideal for architectural foliage and "tree-like" indoor plants. Best for Snake Plant, ZZ Plants, or a Spider Plant. Perfect for office corners or flanking a residential console table. Outdoor - Ornametal Grasses, Small Plants.

  • 20" / 24" Cube (Large and Extra Large): The perfect size for entryway ceremony and ornamental trees. Ideas include Evergreens and Boxwood Topiaries, Ornamental Grasses, Olive Trees, or Fiddle Leaf Figs. For a vertical architectural look, Sky Pencil Hollies are excellent.

  • 30" Cube (XXL -Extra-Large): Designed for specimen trees and high-impact privacy. This volume is required for larger trees such as Japanese Maples, Dwarf Citrus (Lemon/Lime), or Serviceberry. To create a privacy screen, plant a series of Emerald Green Arborvitae or Tall Ornamental Grasses.

Pro-Tips for the Best Results

  • High-Wind Stability: For exposed roof decks or coastal balconies, add 3 inches of heavy gravel at the base before adding soil. This lowers the center of gravity, ensuring your privacy screen stays upright during heavy gusts.

  • Thermal Protection: While the fiberglass is frost-proof, using an insulated liner inside the planter in extreme northern climates can help protect the root balls of perennial trees, ensuring they return season after season.

The Seeley Cube Planter is made in India by NMN Designs®

Indoor Planter Box - Medium (14") to Extra Large (24")

    Size Specifications

    • Medium Planter - 14" L x 14" W x 14" Tall 
    • Large Planter - 20” L x 20” W x 20” Tall
    • Extra Large Planter - 24" L x 24" W x 24" Tall
    • XXL Planter - 30" L X 30" W X 30" Tall  (Black Only)

    Internal dimensions are 1/2" less for L x W x H

    Save Extra 10% OFF Entire Order ($125 Minimum) with Code GET10

    Enjoy always free, fast shipping. Typically within 2-3 business days.

    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 28206793425

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    4.1 ★★★★★
    Based on 21 reviews
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    Product Reviews
    B
    Birdie, Las Vegas, Nv.
    Pawtucket, US
    ★★★★★ 4
    Good quality office chair with movable arms
    Color: Dark, Color: Dark
    This chair was relatively easy to put together. After unboxing and laying out all of the parts, my husband and I built it in 22 minutes. We noticed how the instructions have you put the tilt mechanism bracket on after putting the back and arms on. Another chair we built was the opposite, which made attaching it to the base actually easier. That way just made more sense. This way, you put the back and seat together using the arms, then you attach the tilt mechanism to the bottom of the seat, but the seat is at an angle when you do this. Then you lift the whole chair and place it down onto the legs. I'm glad there were two of us to do that part. We also noticed one of the holes for screwing in the arm bracket was not lined in metal like the rest of them were. It still worked, though. It does rock a bit back and forth. The height adjusting rod also locks the chair in place for when you don't want the chair to lean back. There is a knob underneath that allows you to loosen or tighten how much it moves when you lean back or rock. The material is faux leather. It looks like real leather and feels pretty good. This makes it easy to clean. The arms can be raised level with the back of the chair to make it easy to slide out of the side of the chair. Overall this chair has a pretty classic look to it and is comfortable to sit in. It even has some lumbar support. The way the back of the chair and the seat of the chair connect together leaves a little bit of a gap. Nothing major, but you could lose coins or keys through the gaps between the cushions. If you have a cat, this would be a great way for them to poke their paws through and say hello.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 20, 2026
    D
    Verified Purchase
    DBlvd
    New York, US
    ★★★★★ 5
    EXCELLENT choice for the money!!!
    Color: White, Number of Items: 1
    I have never written a chair review, however; I feel this product warrants it. I got this chair to replace an old chair in my studio. I scoured Amazon for hours to find it, and I am glad that I took the time to do so! I was worried about material quality and durability at this price point, but my expectations were FAR exceeded. The piece goes together with a quickness (for me, under 10 minutes), and I only glanced at the instructions once. Suffice to say, setup is simple and intuitive. Once the chair is together, there is a slight amount of play where the base plate attaches to the shaft, however it isn't a ridiculous amount. I only noticed as I was examining it and being critical after my initial excitement. The materials used are very good, and much better than you would likely get from other chairs at this price. The chrome finish is nice, and the chair PU is uniform color with no defects. One really nice feature are the zippered arm rest covers; when they get dirty, which (being white) they eventually will, you can unzip them, lay them flat, and clean them laid out, as opposed to struggling to scrub around 90 degree angles. I am sure this was easier for the manufacturer, but the end result helps the end user as well. Good on them for that. Another thing I am very happy with is the height; I am 6'4" in bare feet, and my wife is 5'0". We both fit comfortably after adjusting. They definitely got the seat height right. And to that point (of size), at my height, and 260 pounds, there is plenty of room at the sides. Mind you, however, I am fit. That is not to say that a 5'10" guy that is 260 will find it comfortable. He may not. That said, most people should fit in this without an issue. The casters had a positive snapping-in, and roll over my low carpet easily. This chair is definitely well built, save for the slight play mentioned earlier. In no way does that detract from it at all. The aesthetic fits my studio perfectly, and in all, I would not hesitate to recommend this chair. If I have any issues with it, I will post an update review, but so far so good. I really love it. If you like the way it looks, pull the trigger. It is definitely worth the price, and more.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 6, 2021
    J
    Verified Purchase
    JCM45
    Bozeman, US
    ★★★★★ 5
    A great choice at affordable price
    Color: White, Number of Items: 1, Color: White, Number of Items: 1
    The design of the chair is sleek and nice looking at a very affordable price and a decent quality. It is the cheaper version of a more expensive one. The wheels move easily; the back of the chair tilts just enough; it is a deep chair to support my back (only 5"3), so I added a back pillow making perfectly comfortable to provide support needed for long period of times. If I have a negative comment, it is about the back of the chair being black so purely matter of esthetic.: and armrests narrower than I'd like and wrapped with 2 pieces of leather connected with a piece of fabric a bit loose with a zipper which will allow overtime to be completely removed and left with chrome completely if wearing out or simply if you prefer that look so options. A great purchase
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 5, 2025
    L
    Verified Purchase
    Lil' Bit
    Battle Creek, US
    ★★★★★ 4
    Great looking chair, a bit hard, fantastic value!
    Color: White, Number of Items: 1, Color: White, Number of Items: 1
    3 for comfort, 5+ for looks and 5 for ease of putting together so I landed on a 4+. I absolutely love the way this chair looks and it accents my other darker office items well. I'm 5'4" and can sit in the chair, all the way back without a pillow so the size works well for me. The back support is fine and you can adjust it if you want it straighter or rock back & forth. I changed out the casters for a more rollerblade type wheel when so I can't speak to the rollability of the included casters, but works well with the wheels I installed. Fantastic value and I'm soo glad I purchased it!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 17, 2026
    A
    Verified Purchase
    A
    New York, US
    ★★★★★ 5
    😃
    Color: White, Number of Items: 1
    Beautiful and easy to assemble. Very sturdy and great support for your back. Well worth the price and fits nicely with the computer desk. Very sleek and expensive looking. Pleased with my purchase.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 16, 2025

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